Office software
Trimble 4D Control Rail
Keep your rail monitoring on track.
Trimble® 4D Control™ (T4D) monitoring software provides a versatile solution to meet demanding rail industry standards for accuracy and efficiency. Eliminate manual calculations and easily automate your track geometry monitoring using geodetic or geotechnical data.

Benefits and performance
Powerful solution for multiple workflows
Accurately detect and monitor changes in track geometry using either an automated or semi-automated monitoring approach with geodetic or geotechnical data.


Advanced capabilities
Features align seamlessly with rail authority standards and project specifications for a unique and intuitive solution.
Features and capabilities

As-built data integration
Use as-built data collected with the Trimble Access™ Track Gauge Survey app or Trimble GEDO CE track measurement trolley for absolute results.

Real-time alarms
Stay informed on the behavior of your rail track geometry and receive automatic alerts on rail-specific parameters at any time of sudden and critical changes.

Rail-specific visualization
Benefit from rail-specific visualization with the flexibility to view your preferred reference measurement: left or right rail, track centerline, or a combination.

Geodetic or geotechnical
Leverage both geodetic and geotechnical solutions to effectively meet the most demanding rail monitoring project requirements.
Product summary
Trimble 4D Control Rail
Monitor rail geometry with confidence.
Product
Features
Choice of workflows
Automated and semi-automated
Monitor all geometry parameters
Cant, twist, displacements, versines
Enhanced flexibility
AMTS with or without as-built
Rail-specific visualization
Across chainages or time
Automatic alarming
Real-time, 24/7
Comprehensive deliverables
Parameter values or detailed metrics
Office software
Trimble 4D Control Rail
Get in touch for recommendations for the Geospatial hardware, software, and accessories needed to get your job done.
Contact us
Works with...


Track Gauge Survey app & bar
An entry-level solution to capture measurements and other data on existing railway tracks.



Trimble S9 HP Autolock®
Top field technologies with the highest level of accuracy.


Trimble S7 Autolock®
Works efficiently and dependably while intelligently maintaining the highest possible accuracy.




4G Rugged Gateway
Communicate with wireless geotechnical sensors and data loggers.

Wireless geotechnical sensors
Tilt and distance measurements for movement detection.

Resources and knowledge


Watch what Trimble can do

Join us live or later

Want to learn more?
Contact Trimble Geospatial today.